381361219 has 2 divisors, whose sum is σ = 381361220. Its totient is φ = 381361218.

The previous prime is 381361181. The next prime is 381361237. The reversal of 381361219 is 912163183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381361219 - 2¹¹ = 381359171 is a prime.

It is a super-2 number, since 2×381361219² = 290872758714331922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (381361259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190680609 + 190680610.

It is an arithmetic number, because the mean of its divisors is an integer number (190680610).

Almost surely, 2^381361219 is an apocalyptic number.

381361219 is a deficient number, since it is larger than the sum of its proper divisors (1).

381361219 is an equidigital number, since it uses as much as digits as its factorization.

381361219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 381361219 is about 19528.4720088388. The cubic root of 381361219 is about 725.1794840603.

The spelling of 381361219 in words is "three hundred eighty-one million, three hundred sixty-one thousand, two hundred nineteen".